Annual mean 12°C · wettest around December · prevailing wind SW
Warmest
22.8 °C
Coldest
4.2 °C
Wettest
40%
Windiest
5.5 m/s
Prevailing
SW
4.3 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Lille over the whole year is 12°C. August is the hottest month, with highs of about 22°C; January is the coldest, with lows of about 3°C. Lille has no sharply defined rainy season: the chance of rain on a given day runs from 22% in July, the driest month, to 31% in December, the wettest. Winds in Lille are highest in February, averaging 4.2 m/s (15 km/h), and lightest in September, at 2.8 m/s (10 km/h). The prevailing wind is from the SW. The clearest skies in Lille come in June, when the sky is typically 59% covered; December is the cloudiest month, at 81%.
Month by month Lille climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
5°C
3°C
1°C
31%
80%
4.0 m/s
0
0
10
February
8°C
4°C
3°C
28%
70%
4.2 m/s
1
0
22
March
10°C
4°C
5°C
27%
67%
3.8 m/s
4
0
39
April
13°C
7°C
9°C
23%
61%
3.5 m/s
17
1
62
May
18°C
11°C
14°C
25%
60%
3.3 m/s
47
4
77
June
22°C
15°C
20°C
25%
59%
3.2 m/s
73
18
65
July
22°C
16°C
20°C
22%
63%
3.1 m/s
77
15
65
August
22°C
16°C
21°C
28%
60%
2.9 m/s
75
20
61
September
20°C
12°C
18°C
26%
60%
2.8 m/s
66
9
75
October
15°C
10°C
12°C
28%
70%
3.3 m/s
28
0
77
November
9°C
6°C
6°C
28%
74%
3.5 m/s
1
0
42
December
7°C
5°C
2°C
31%
81%
3.9 m/s
0
0
18
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Lille weather by season
Year round, Lille has days of about 5°C at their warmest in January, its coolest month, and 22°C in August, its warmest; the coolest hours of the day run from 3°C to 16°C through the year, and the average temperature over the year is 12°C around the clock. Rain is most likely around December and least likely around July. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Lille weather in winterDecember to February
High 6°CLow 4°CRain 30%
Winter in Lille has typical daily highs of about 6°C and lows of about 4°C, with a 30% chance of rain on a given day.
Lille weather in springMarch to May
High 14°CLow 7°CRain 25%
Spring in Lille has typical daily highs of about 14°C and lows of about 7°C, with a 25% chance of rain on a given day.
Lille weather in summerJune to August
High 22°CLow 16°CRain 25%
Summer in Lille has typical daily highs of about 22°C and lows of about 16°C, with a 25% chance of rain on a given day.
Lille weather in autumnSeptember to November
High 15°CLow 9°CRain 27%
Autumn in Lille has typical daily highs of about 15°C and lows of about 9°C, with a 27% chance of rain on a given day.
When is the rainy season in Lille?
Lille has no sharply defined rainy season: the chance of rain on a given day runs from 22% in July, the driest month, to 31% in December, the wettest.
What time of year is Lille windiest?
Winds in Lille are highest in February, averaging 4.2 m/s (15 km/h), and lightest in September, at 2.8 m/s (10 km/h). The prevailing wind is from the SW.
What is the average temperature in Lille year round?
The average temperature in Lille over the whole year is 12°C. August is the hottest month, with highs of about 22°C; January is the coldest, with lows of about 3°C.